Actually, yes, in fact, and it is quite frustrating. My tech facts and console settings are fine, the "fault" is not coming from this direction; the lag is reduced, etc.

I am extremely adverse to whining of purely non-creative kind, but there is definitely some kind of "issue" with the Extinction mode accuracy challenge. Whether my shots register sort of appears random. In solo and co-op play, either map. Some games correctly accept as valid a dead-on hit (LOL, how can a shot straight to the head, blood apparent, KILLING the alien in one shot, reduce the accuracy?), sometimes bizarrely I am given no credit for a perfectly fine shot or set of shots. In Extinction I play rigorously, no messing around with potential glitch-like short-cuts, and overall it is a great mode and addictive, so I am not bashing here... This is the only "flaw" thus far I have noticed...

I want Activision to know I am not attacking them, in the past I have harangued the COD fan base for purely destructive, whiny critique, but this is something actually existent, although incredibly minor. Nothing taking away from the value of the game as a whole, just maybe something to "fine tune" a little one day...

I have noticed this as well. I found that waiting and getting a few melee kills before landing a shot does away with the glitch. I think there is a waiting period before the challenge starts even though there isn't a viewable countdown shown on the screen like other challenges.

There is also a glitch on the "kill 10 seekers before they self-destruct" challenge where the countdown clock starts late and a meteor has already landed. You have to wait for the countdown to end before you start killing them, which is frustrating because the best time to shoot them is when they are coming out of the meteor. If you kill them before the countdown ends, there might not be enough seekers for the rest of the challenge... making it impossible to complete the challenge. I noticed this happens most often on the hive to the immediate upper left platform after your first encounter with the breeder, but I have also experienced it later in that area... just not as frequently.

I seem to get this challenge mostly at the hive near the VKS. I some times get it else where, but more often than not, it's at that one. Which would be good because NORMALLY, you get quite a few meteors, 2 right next to you, but when this challenge appears, you seem to get no meteors. I've had it several times before, where only 2 arrive, but then literally as the music is starting to end the drill, 2 more meteos come, but will land the other side of the compound. If you're lucky, you may just have enough seconds to get the additional 2 seekers. Some times they land and come out of said meteors AFTER the drill has finished

I have seen this too and thought it was lag at first. But sometimes you can shoot and kill and alien with one armor piercing bullet, but reduce the accuracy. Not sure how that works.... It isn't game-breaking, so I don't mind too much at the moment.